Hydraulic Elevators are prevalent in multi-level structures throughout the world. They facilitate and control the flow of people, make the movement of equipment easier, and allow disabled persons access to upper-level floors. Elevators in use today fall into three general categories: hydraulic, electric traction, and Machine Room-Less (MRL). The hoisting mechanisms to lift the cars of elevators generally employ either hydraulics or wire-rope traction systems. The principle of hydraulics is based on Pascal’s law of the incompressibility of fluids: any change in pressure applied at any point in the fluid is transmitted undiminished throughout. This pressurized fluid is used for the generation, control, and transmission of power.